Cortical Serotonin 1A Receptor Levels Are Associated with Depression in Patients with Dementia with Lewy Bodies and Parkinson’s Disease Dementia
Bibliographic record
Abstract
<i>Background:</i> Serotonin 1A receptors (5-HT<sub>1A</sub>) have not been studied in dementia with Lewy bodies (DLB) or Parkinson’s disease dementia (PDD) patients with depression. <i>Aim:</i> To examine 5-HT<sub>1A</sub> in DLB and PDD postmortem in relation to depression. <i>Methods:</i> [<sup>3</sup>H]8-hydroxy-2-dipropylaminotetralin binding to 5-HT<sub>1A</sub> was determined in temporal cortex (Brodmann areas, BA20 and BA36) from 10 DLB patients, 17 PDD patients and 9 controls. <i>Results:</i> 5-HT<sub>1A</sub> density was significantly higher in BA36 in combined DLB/PDD patients with depression, but was unaltered in BA20. <i>Conclusion: </i>Higher BA36 5-HT<sub>1A</sub> density in PDD and DLB patients than in control is dependent on whether the patient had experienced depression during life, not DLB/PDD diagnosis. A 5-HT<sub>1A</sub> antagonist adjuvant may improve treatment of depression in dementia.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".